CARLSBAD, Calif.--(BUSINESS WIRE)--International Stem Cell Corporation (OTCBB: ISCO) announces today successful completion of the first series of preclinical studies designed to support the safety and utility of neuronal cells derived from human parthenogenetic stem cell line (hpSC). These initial experiments, demonstrating that the derived neuronal cells were able to survive in mice brains without giving rise to tumors, represent a key milestone towards possible therapeutic applications including treating Parkinson’s disease.